MJ
Martha Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lackawanna-County, Pennsylvania
Our Model Tree links this Martha Jones across the 1920, 1930 and 1940 US Censuses in Lackawanna-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Mary — first a daughter (b.~1903), then head of a 5-person household.
Age 37
b. ~1903
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lackawanna-County, Pennsylvania |
| Surname | Jones |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Scranton |
| 1935 Residence (County) | Lackawanna |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public school |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 2000 |
| Highest Grade | C 5 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Teacher |
| Township / Ward | Scranton |
| Est. Birth Year | ~1903 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Martha Jones | Daughter | — | 37 | ~1903 |
| Margaret Jones | Daughter | — | 35 | ~1905 |
| Mary Jones | Daughter | — | 33 | ~1907 |
| Dorothy Jones | Daughter | — | 27 | ~1913 |
| Mary Jones | Head | — | 71 | ~1869 |
Census Appearances
1920
Lackawanna, Pennsylvania
Daughter, age 16
Lackawanna, Pennsylvania · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lackawanna, Pennsylvania
Daughter, age 27
Lackawanna, Pennsylvania · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lackawanna-County, Pennsylvania
Daughter, age 37
Lackawanna-County, Pennsylvania · implied b. ~1903 — 5 household members
| Surname | Jones |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Scranton |
| 1935 Residence (County) | Lackawanna |
| Occupation | Teacher |
| Industry | Public school |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 2000 |
| Highest Grade | C 5 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Martha Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Jones (~0.92 confidence) and mother Mary Jones (~0.92 confidence) and mother Mary Jones (~0.92 confidence) and mother Mary Jones (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Jones
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Mary Jones
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Mary Jones
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Mary Jones
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Martha Jones
Daughter · 1940 · age 37 · b. ~1903 · Pennsylvania
★ You are viewing this record
Sibling
Margaret Jones
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Jones
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Jones
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lackawanna-County, Pennsylvania
Open full size
1940 US Federal Census — Lackawanna-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03687-00207)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Victor Montrose | 25 | Son | Cutter Helper | New Jersey |
| 2 | Helen D Montrose | 23 | Daughter | Assembler | New Jersey |
| 3 | Elizabeth Baker | 70 | Head | — | Wales |
| 4 | Sarah Gross | 49 | Daughter | — | Pennsylvania |
| 5 | Edward Gross | 49 | Son-in-law | Bookkeeper | Pennsylvania |
| 6 | Mary B Jones | 71 | Head | — | Pennsylvania |
| 7 | Martha Jones THIS PERSON | 37 | Daughter | Teacher | Pennsylvania |
| 8 | Margaret A Jones | 35 | Daughter | Teacher | Pennsylvania |
| 9 | Mary E Jones | 33 | Daughter | Teacher | Pennsylvania |
| 10 | Dorothy Jones | 27 | Daughter | Teacher | Pennsylvania |
| 11 | Ray Offland | 43 | Head | Sheet Metal Worker | Pennsylvania |
| 12 | Grace D Offland | 38 | Wife | — | Ohio |
| 13 | Karl Offland | 14 | Son | — | Pennsylvania |
| 14 | John J Gilroy | 53 | Head | Mine Laborer | Pennsylvania |
| 15 | Dorothy Gilroy | 49 | Wife | — | Pennsylvania |
| 16 | Dorothy Gilroy | 23 | Daughter | Cake Selector | Pennsylvania |
| 17 | John D Gilroy | 22 | Son | Milk Salesman | Pennsylvania |
| 18 | Joan Gilroy | 19 | Daughter | Waitress | Pennsylvania |
| 19 | Catherine Gilroy | 36 | Head | — | Pennsylvania |
| 20 | George H Martin | 34 | Head | Head Writer | Pennsylvania |
| 21 | Irene D Martin | 30 | Wife | — | Pennsylvania |
| 22 | Thomas Martin | 5 | Son | — | Pennsylvania |
| 23 | Eileen Martin | 1 | Daughter | — | Pennsylvania |
| 24 | Diana Hanul | 38 | Head | — | Pennsylvania |
| 25 | Albert Hanul | 16 | Son | — | Pennsylvania |
| 26 | Isabella D Bolton | 35 | Head | — | New York |
| 27 | Hayes Bolton | 7 | Daughter | — | Pennsylvania |
| 28 | Millicent D Harris | 49 | Head | Salesman Retail | Pennsylvania |
| 29 | John Harris | 20 | Son | Stock Checker | Pennsylvania |
| 30 | Ann Harris | 19 | Daughter | — | Pennsylvania |
| 31 | Ralph Crawford | 50 | Head | Carpenter | Pennsylvania |
| 32 | Blossie D Crawford | 60 | Wife | — | Pennsylvania |
| 33 | Anna Grogan | 60 | Sister | Seamstress | Pennsylvania |
| 34 | Mary C Reed | 76 | Head | — | Pennsylvania |
| 35 | Joseph Pfeiffer | 67 | Head | Night Man | Pennsylvania |
| 36 | Emma D Pfeiffer | 61 | Wife | — | Pennsylvania |
| 37 | Helen T Pfeiffer | 33 | Daughter | — | Pennsylvania |
| 38 | Marie Breuscher | 63 | Sister-in-law | Seamstress | Pennsylvania |
| 39 | Stanley Florey | 57 | Head | Plumber | Pennsylvania |
| 40 | Ruth Florey | 43 | Wife | — | Pennsylvania |
Pedigree Summary
Martha + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)